Home / 15,748.13-21,732.68-8,674.56

Finding the Fourth Proportional to 15,748.13, 21,732.68 and 8,674.56

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Solution

The fourth proportional to 15,748.13, 21,732.68 and 8,674.56 is: 11,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.13 : 21,732.68 = 8,674.56 : x
  2. Step 2: Convert to fraction form
    15,748.13/21,732.68 = 8,674.56/x
  3. Step 3: Cross multiply
    15,748.13x = 21,732.68 × 8,674.56
  4. Step 4: Simplify right side
    15,748.13x = 188,521,284.58
  5. Step 5: Solve for x
    x = 188,521,284.58/15,748.13
  6. Step 6: Final answer
    x = 11,971.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.